List wireless@wispa.org
Sent: Mon, 24 Apr 2006 11:25:08 -0700
Subject: [WISPA] 450' PoE 48v
Hello...got a run of cat5 about 450' that is
working but doesn't seem to be sufficiently powering the amplifier built into
the antenna. The device is a Terabeam EtherAnt-Turbo/LR (same
:
Scott Reed
To: WISPA General List
Sent: Monday, April 24, 2006 11:54
AM
Subject: Re: [WISPA] 450' PoE 48v
First, 450' is way too far for really reliable
ethternet, if it is cat 5. Voltage drops due to resistance in the
wire. Voltage = Current * Resistance. Longer wire has more
Subject: Re: [WISPA] 450' PoE 48v
Thanks, Scott. So, increased voltage is
something to
try.
And your comment on the cat5 being too far...it
was
considered initially but the ethernet interface on these units is a 10mb/half
duplex interface. My experience tells me that I can reliably
